<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			div{
				color: red;
				font-weight: bold;
				
			}
			.movebox{
				animation: movebox 0.5s infinite;
				position: relative;
			}
			@keyframes movebox{
				from{left:0px}
				to{left:2000px}
			}
		</style>
	</head>
	<body>
		<div class="movebox" >我猜你看不见我写的是啥</div>
	</body>
</html>
